Need preamp wiring diagram for 1976 Musicmasn Stingray 1 Gtr

Thu Jun 25, 2015 3:36 pm

II am the original owner of a Musicman Stringray 1 Guitar. The preamp has been solid since I bought it 40 years ago but recently the out of phase setting is not working the preamp appears to be the problem. Does anyone have a wiring diagram for the preamp (covered in black plastic) so that I could get and electrician friend of mine to build me a replacement?

Smalaney